simple solved plugin

[ichabod801]

When an administrator or moderator marks a topic as done, it is automatically closed.

I don't think that would work for us. Often when the initial problem is solved, another one crops up, and the discussion keeps going. And I think on concern here is that an administrator marks it solved, the OP may not think it's solved. Closing the thread would block the OP from mentioning how the 'solution' doesn't actually work.